Re: [MI400] IFS response time (not an MI-specific issue, but I'm onlyon this list and the Java list)

[bdietz@xxxxxx]

If you are on V5R1 or V5R2 you may find that the *TYPE2 directories will
help with access times.
On V5R1 you need some PTF's

<SNIP>
Get Ready to Boost Your IFS Performance with V5R2
by Jeff Parker

In V5R2, shiny new plumbing is available called *TYPE2 directories. *TYPE2
directories are a completely new design, structure, and implementation of
the directory object in the root, QOpenSys, and user-defined file systems
(UDFS). *TYPE2 directories are intended to replace the old *TYPE1 directory
implementation that has existed since the IFS was introduced in V3R1.
*TYPE2 directories incorporate numerous performance optimizations within a
new object structure anchored on an internal system journal to produce a
high-performance, industrial-strength directory.


Whole story is at;
http://www.midrangeserver.com/tfh/tfh082902-story05.html
<SNIP>


-------------------------
 Bryan Dietz
3X Corporation
614-410-9205
=======================================================
I've got an application storing documents in IFS stream files. As more and
more documents are stored, and the IFS directory structure becomes more
complex, the response time is becoming quite slow, and the slowing seems to
be much greater than anybody here has had any reason to expect.

Does anybody here have any idea what's going on, and how to correct it?

--
J.Lampert